DC Gate Motors?

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DC Gate Motors?

Postby Richrichie on Thu Jul 30, 2009 7:48 pm

Hello Chaps

Can a 24V motor from an automatic gate unit be used as a wind generator.

Really struggling to find a DC motor that will do the job

Rich
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Re: DC Gate Motors?

Postby Greystoke on Fri Jul 31, 2009 9:59 am

Hi Richrichie,
Welcome to the forum.

Most DC motors need a much higher rpm than possible with a windturbine. Max safe speeds for turbines are ±500rpm, but usually less than 300rpm. So you may need a gearbox.

Only way to find out for sure is to put the motor on a bench, and test the output against know rpm's.
Regards
Cor
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Re: DC Gate Motors?

Postby windgat on Sat Aug 01, 2009 1:04 pm

A DC motor which for e.g. does 3000rpm at 24V, if turned at 500rpm will make about 4V. Gearboxes (or pulleys) are a bit of a pain to make, and also lose a lot of energy. The gearboxes on large turbines is apparently the most technically challenging component, the most expensive, and requires the most maintenance.
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Re: DC Gate Motors?

Postby hanifkhan on Wed Jan 07, 2015 12:36 pm

Max safe speeds for turbines are ±500rpm, but usually less than 300rpm. So you may need a gearbox.
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